baber/WOPTO huggingface dataset:
Patent DE-3112455-A1 (DE)
Title: "Process for preparing hydrofluoric acid from fluorine-containing organic compounds"
Inventor: SEMMLER JOACHIM DR
IPC: C01B7/19
Filed: 1981-03-28
Abstract: Hydrofluoric acid can be obtained, in addition to CO and/or CO2, from organic fluorine compounds which contain no halogens other than fluorine, at elevated temperature in the gas phase. To this end, the organic fluorine compound is admixed with enough water to permit (taking into account the hydrogen which may be bound) all the bound fluorine to be converted into HF, and at least enough oxygen to permit (taking into account the amount of oxygen which may be bound) the hydrogen not bound as HF to be converted into H2O and all of the bound carbon to be converted into CO and/or CO2. The mixture is heated to temperatures at which HF is formed, followed by separation of the generated hydrofluoric acid from the resulting gas mixture.
Patent DE-3117834-A1 (DE)
Title: Gastight and watertight connection of two pipe ends
Inventor: BLUMENSAAT JUERGEN DIPL ING
IPC: F16L13/08
Filed: 1981-05-06
Abstract: The invention relates to a connection socket which can be pushed on the ends of two pipes and is connected to the pipe ends in a gastight and watertight manner by brazing. According to the invention, said socket has an inner annular groove with a specific number of brazing-solder shaped parts which are introduced therein and project out of the groove in order to form stops for the pipe ends. Starting from the groove, the socket is provided, over the region where the socket and pipe ends overlap, with axis-parallel grooves or scores which form the flow capillaries for the brazing solder and permit a press fit of the pipe ends in the socket.
Patent DE-3122521-A1 (DE)
Title: Electric coffee-making machine
Inventor: HAGER CLAUS DIPL ING
IPC: A47J31/52
Filed: 1981-06-05
Abstract: The invention relates to an electric coffee-making machine, having a fresh-water container and a water pipe leading from the latter to a coffee filter and having a timer for switching on the appliance, preferably the heater, at a preprogrammable point in time. The invention is based on the object of increasing the operational reliability in a coffee-making machine of this type and of preventing unintentional switching-on by the timer unit. According to the invention, this object is achieved in that a water sensor is arranged in the fresh-water container or the water pipe and is connected to the timer and prevents switching on if there is no water. As a result, switching the heater on is prevented if the coffee-making machine is not prepared for making coffee. <IMAGE>
Patent DE-3123673-A1 (DE)
Title: Reversible plate tilter
Inventor: MORATH GUENTER DIPL ING
IPC: B21B39/32
Filed: 1981-06-15
Abstract: Reversible plate tilter in which the spacing of the two pivot axes for the tilting arms can be varied in accordance with the thickness of the plate in order to allow as quiet as possible transfer of the plates via their vertical position from one group of tilting arms to the other group.
Patent DE-3125911-A1 (DE)
Title: Party lottery, parlour game with 49 figures
Inventor: ESSICH JAKOB
IPC: A63F3/06
Filed: 1981-07-01
Abstract: Published without abstract.
Patent DE-3126197-A1 (DE)
Title: Arrangement and method for determining the height profile and reflectivity (reflecting power) of surfaces
Inventor: RUPPERT WERNER DIPL ING
IPC: G01B11/02
Filed: 1981-07-03
Abstract: By scanning a rough, uneven, undulating (corrugated) surface of an object (17) by means of a television camera (7) which is moved to and fro transversely over said surface without special height adjustment and as parallel as possible thereto, contains an optoelectric transducer and has a storage plate (5) situated obliquely relative to the scanned surface, it is possible to determine height profiles and, at the same time, values of reflectivity for the surface thus scanned, specifically due to connection of an appropriately programmed digital computer at the signal output of the television camera (7). However, it is presupposed that the focal length (f) of the lens (3) and the object distance (a) to the surface to be scanned are tuned appropriately to one another in conjunction with as small as possible a depth of focus (field) of the lens (3) assigned to the optoelectric transducer. A television camera (7) equipped in such a way and guided relative to the surface to be scanned can be used to prepare both micrographs in the production of, e.g. monolithically integrated semiconductor circuits, and macrophotographs, e.g. in satellite photography, in conjunction with appropriate adaptation. <IMAGE>
Patent DE-3133647-A1 (DE)
Title: Device for compounding plastic moulding compositions
Inventor: MUELLER WERNER DIPL ING
IPC: B29C48/44
Filed: 1981-08-26
Abstract: By the arrangement of a gear pump at the discharge end of a planetary roll extruder, the result is achieved that a discharge screw, usually arranged at the end of the planetary roll extruder, is no longer required on the one hand, special advantages being achieved therewith on the other hand. In particular, it is to be emphasised that a high, very uniform mould pressure is obtained without the thermally sensitive materials being excessively heated up again by shearing and that the residence time of the material in the planetary roll part can be controlled by the separately adjustable rate of the gear pump.
Patent DE-3139028-A1 (DE)
Title: Process for providing gaseous oxygen
Inventor: FOERSTER HANSGEORG PROF DR
IPC: C01B13/02
Filed: 1981-10-01
Abstract: A process for producing gaseous oxygen, especially in the extraterrestrial domain, which involves the rapid heating of rocks and ores up to the melting temperature range, and pumping off the oxygen gas escaping from the melt during heating. The rocks and ores found in situ are employed, thus, e.g. lunar rock. In the case of basalt the process results, for an amount to be melted of 10 g, in an oxygen yield of 0.1 g of gaseous oxygen.
Patent DE-3139934-A1 (DE)
Title: Rolling contact bearing for longitudinal movements
Inventor: WALTER LOTHAR
IPC: F16C29/06
Filed: 1981-10-08
Abstract: A rolling contact bearing (2) for longitudinal movements consists of a sleeve-shaped cage (8), which has at least one radially continuous, longitudinally extending opening (9) and load-transmitting rolling elements (10) arranged one behind the other in the said opening, and of a rail or rails (13) covering the opening(s) (9) radially at the outside and having a radially inward-pointing, axially extending groove-shaped raceway (14) for the load-transmitting rolling elements (10) and a radially outward-pointing outer surface (15) bevelled from its centre towards its two longitudinal ends and supported in the bore (3) of a housing (1) or the like. To make the rolling contact bearing (2) insensitive to bending of the shaft (6) and provide it with a relatively great bearing capacity, the rail (13) is designed to be elastically flexible in the longitudinal and circumferential direction. <IMAGE>
Patent DE-3140257-A1 (DE)
Title: Transparent illuminated sign for motor vehicles
Inventor: BOEHM EDWIN
IPC: G09F21/04
Filed: 1981-10-10
Abstract: The invention relates to a transparent illuminated sign which can be affixed by means of a clamp to the roof of a motor vehicle, transversely to the direction of travel, and consists of a plate carrying the electric bulbs and a hood-shaped part which can be plugged onto the latter and carries an indication of the purpose of the motor vehicle, e.g. taxi, doctor, etc., the clamp having a central part and end parts adjoining at each side. The object of the invention is to improve this transparent illuminated sign in such a manner that exceptionally easy release and locking of the transparent illuminated sign is possible, and also the electrical connection of the bulbs within the transparent illuminated sign is greatly simplified. This object is achieved, according to the invention, in that retaining rails are arranged in the central part, extending in the longitudinal direction thereof and preventing an upward movement of the transparent illuminated sign, and in that the transparent illuminated sign can be locked in the retaining rails by two blocking means acting as switching contacts for the electric bulbs.
Patent DE-3141288-A1 (DE)
Title: Circuit arrangement for testing an electrical discharge lamp, especially a low-pressure fluorescent lamp for fracture of the glass
Inventor: WILLING ACHIM DR ING
IPC: H05B41/46
Filed: 1981-10-17
Abstract: A circuit arrangement is proposed, in which a fluorescent lamp can be checked for fracture of the glass by generating a glow discharge in an intrinsically-safe circuit.
Patent DE-3143337-A1 (DE)
Title: Device for machine reading of music
Inventor: STELZER HANS-GEORG
IPC: G06V10/24
Filed: 1981-10-31
Abstract: For the machine reading of music and for converting this music into machine-processable information items, a device is provided which has a music-sheet receiving device (2) and at least one reading optics (1) directed towards the receiving device, which optics is followed by a converter (18) which recognises the optical symbols of the music notation picked up by it and converts them into machine-processable signals and the output signals of which can be stored in a subsequent memory (23). The memory (23) can be advantageously followed by an interpreter (24), by means of which a recording device (26) optionally equipped with a recording medium (28) can be driven. <IMAGE>
Patent DE-3143434-A1 (DE)
Title: Disengageable friction clutch
Inventor: LINNIG KARL-HEINZ
IPC: F16D25/0635
Filed: 1981-11-02
Abstract: The invention proposes a disengageable friction clutch which serves to transmit torques. The clutch is constructed such that an annular pressure piston (23) is made to act in the axial direction on a pressure disc (26) by means of compressed air, the disc for its part acting on the friction facings (14, 15) of the clutch disc (13). By virtue of special shaping of the clutch disc and the spring steel disc (25), the said discs can move slightly in the axial direction of the clutch and torque transmission without rotary play is achieved. When the pressure is reduced, the clutch disc (13) and the spring steel disc (25) return to their initial positions, the clutch operating without residual torque in the disengaged condition. <IMAGE>
Patent DE-3144651-A1 (DE)
Title: Compositions for regulating the yield of horticultural plants
Inventor: TIVADAR BABO DR
IPC: A01N57/20
Filed: 1981-11-10
Abstract: The invention relates to compositions for regulating the yield of horticultural plants, which comprise, as active substance(s), in addition to   a) 0.001 to 95% by weight of 2-chloroethylphosphonic acid and/or 1 or more salts thereof, b1) 0.0005 to 50% by weight of 1 or more indole-3-alkanecarboxylic acids and/or 1 or more salts thereof and/or 1 or more functional derivatives thereof and/or b2) 0.0002 to 50% by weight of  alpha -naphthylacetic acid and/or 1 or more salts and/or esters thereof and/or b3) 0.001 to 50% by weight of 1 or more dioxybenzenes and/or 1 or more salts thereof, if appropriate together with 1 or more solid and/or liquid inert carriers and/or extenders and/or ionic and/or non-ionic surfactants. These compositions are particularly suitable for regulating the yield of grapevines. Spraying of the grapevines with the dilute solution of the compositions results in thinning of the flowers. They are not phytotoxic. Their method of application is virtually independent of the variety of the grapevines and the climatic conditions.
Patent DE-3147384-A1 (DE)
Title: Winding device for a flexible backdrop
Inventor: JONGSIK WON
IPC: A63J1/02
Filed: 1981-11-30
Abstract: What is provided is a simply constructed winding device for a backdrop, for example for use in a photographic studio, which guarantees a smooth winding and unwinding and which ensures that any intended winding position is obtained and maintained without further action. For this, there is an actuating roller, connected to the winding shaft for the backdrop, and a catch mechanism which is formed by springs (7) and balls (8) received by the actuating roller, by catch holes located in the adjacent bearing plate and by a setting ring (4) which is screwed onto the winding shaft on the outside of the bearing plate (1) and which pulls the actuating roller (2) and therefore the balls (8) up against the bearing plate (1) counter to the spring effect of the springs (7). The actuating roller is designed for guiding a chain (12), by means of which it can be set in motion in both directions. <IMAGE>
Patent DE-3222979-A1 (DE)
Title: Central locking device for steering castors on hand-propelled vehicles, especially refuse containers
IPC: B60B33/02
Filed: 1982-06-19
Abstract: Central locking devices for steering castors (3) provided on articles which are to be rolled, especially refuse containers (1), having adjusting bolts (9) passing centrally upwards through their pivot bearing (5), are provided with a connecting rod (14) which can be adjusted lengthways by means of an actuating lever (13'''), extends horizontally above the steering castors (3) which lie one behind the other in the longitudinal direction (A) of the vehicle, and permits its adjustment bolts (9) to be actuated jointly. It is more user-friendly and economical of space, and requires less adjusting force, if an angled lever (13) which can perform a pivoting movement about a horizontal transverse axis (12) is provided next to each adjusting bolt (9), one arm (13') of this lever bearing on the adjusting bolt (9) whereas the other arms (13'') are connected in an articulated manner to the connecting rod (14), the angled lever (13) which is to the rear in the direction (A) of travel simultaneously serving as the actuating lever (13'''). <IMAGE>
Patent DE-3227860-A1 (DE)
Title: Device for lifting a wheel on a vehicle
Inventor: GEIGER FRIEDRICH
IPC: B66F13/00
Filed: 1982-07-26
Abstract: The invention relates to a device for lifting a wheel on a vehicle which has two cross members which reach below the wheel, extend parallel to the wheel axle and are fastened to a support parallel to the wheel plane and form with this support a supporting element on which a lifting means acts. In order to make possible large lift heights without the device being released from the wheel, the invention provides for the supporting element to be pivotable with the lifting means about a horizontal axis running transversely to the wheel axle.
Patent DE-3228420-A1 (DE)
Title: Process for the preparation of substituted aromatic amines
Inventor: GOETZ NORBERT DR
IPC: C07C209/36
Filed: 1982-07-30
Abstract: Process for the preparation of substituted aromatic amines by catalytic hydrogenation of substituted aromatic nitro compounds consisting of two aromatic rings linked to one another via an alkylene bridge in the absence of acid.
Patent DE-3238557-A1 (DE)
Title: Semiconductor device having plastic encapsulation
Inventor: EMEIS REIMER DR
IPC: H01L23/04
Filed: 1982-10-18
Abstract: In plastic-encapsulated power semiconductor devices, mechanical stresses occur at the metal-plastic interface and result in the formation of splits after frequent changes in load. The ambient atmosphere is consequently able to penetrate the interior of the encapsulation and impair the electrical characteristics. The stresses can be reduced if the terminal contacts consist either of flat (3, 8) or cup-shaped (2, 7) ductile metal foils which are directly in contact with the plastic (6). <IMAGE>
Patent DE-3239386-A1 (DE)
Title: Process and apparatus for centrifugal spinning
Inventor: MAAG FRITJOF DIPL ING DR ING
IPC: D01H4/08
Filed: 1982-10-25
Abstract: The invention concerns a process for producing staple fibre and filament yarns or threads by the centrifugal method and apparatus for carrying out the process. Measures for reducing the drive power required by the centrifuge and optimisation of centrifuge size and speed reduce energy, work and capital required. A tube which is inserted into the centrifuge and which widens under the action of the centrifugal forces simplifies removal of the yarn cake from the centrifuge and stabilises the yarn cake.
Patent DE-3242741-A1 (DE)
Title: Marking, warning and fastening band
IPC: A01K15/04
Filed: 1982-11-19
Abstract: The present invention relates to a marking, warning and fastening band of differing length and width, composed predominantly of textile fabric, with a touch-and-close fastening, consisting of a bonding-part fabric and of a coating-part fabric. Clips can be arranged at the ends. The invention relates, furthermore, to a fastening band with a touch-and-close fastening, which is provided with daylight luminous paint and/or light-reflecting paint, if appropriate with insecticides and/or other active substances. It relates, further, to one or more fastening bands with a touch-and-close fastening which are integrated in a belt system.
Patent DE-3247706-A1 (DE)
Title: System for heating cultivated plants
Inventor: STOECKHERT HEINZ
IPC: A01G13/06
Filed: 1982-12-23
Abstract: In a system for heating cultivated plants, in particular vineyards, the invention provides, in order better to exploit the energy used and reliably to avoid plant parts freezing, a hot-air pipeline, laid in the region beneath the plants, a heating apparatus and a circulating apparatus. This thus results in a very uniform and effective supply of the heat given off by the heating apparatus and, overall, in a saving in energy. <IMAGE>
Patent DE-3303531-A1 (DE)
Title: Reduced-vibration impact mechanism for pneumatic tools, in particular pneumatic rammers
Inventor: GEYER JOERG
IPC: B25D17/24
Filed: 1983-02-03
Abstract: The invention relates to pneumatic tools, in particular pneumatic rammers, as used in foundries for compacting moulding sand or in the construction industry for compacting building materials. The aim of the invention consists in providing a reduced-vibration design for the impact mechanism of such pneumatic machines and starts from the object of assigning to the impact mechanism a vibration and shock damper which operates as a function of the impact frequency and by means of which the hardness of the impact and the operating shocks and vibrations are reduced. The invention consists essentially in constructing the vibration and shock damper as a separate subassembly attached coaxially to the tool. This subassembly comprises a tubular main body with a guide sleeve guided with freedom of axial movement in the tube and fitted with a damper piston, an annular gap being formed between the damper piston of the guide sleeve and the inner wall of the tubular main body, and the guide sleeve being arranged in a manner which allows it to be supported elastically on the air cushion formed by means of the damper piston in the front and rear cylinder space. The application of the invention is in the production of pneumatic impact tools, in particular pneumatic rammers.
Patent DE-3303587-A1 (DE)
Title: Fuel line arrangement
Inventor: HOFBAUER PETER DR ING
IPC: F02M37/00
Filed: 1983-02-03
Abstract: A line arrangement for internal combustion engines functioning with diesel oil as fuel provides for an intake line through which the fuel is fed from a fuel tank by way of a filter to a feed pump, and a return line, by way of which the excess fuel is returned from the feed pump into the fuel tank. In order to ensure reliable operation of the internal combustion engine without the risk of clogging of the line system even in those operating conditions in which, owing to the prevailing temperatures and possible fuel grades paraffin is precipitated, it is proposed to provide a device (7) which connects the return line (6a) in a first position to the intake line (5b), preferably at a point in front of the filter (2) and in a second position to the fuel tank (1). If necessary a further position could also be provided in which the return line (6a) is connected to the intake line (5d) at a point after the filter (2). 
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Patent DE-3324762-A1 (DE)
Title: Attachment element for the detachable connection of components which are arranged in layers one on top of the other
Inventor: BREITKOPF GUENTER
IPC: F16B19/10
Filed: 1983-07-08
Abstract: An attachment element for the detachable connection of components which are arranged in layers one on top of the other and have aligning holes through which a locking part is inserted which has projections on its one end and a head on its other end. In order to hold the components together during its rotation, the locking part engages with its projections behind shoulders of an insertion piece which is inserted into the hole in the component facing the head, to be precise in the same direction as the locking part. In this case, two mutually opposite limbs of the insertion piece spring together and latch in the hole as protection against rotation. In addition to the shoulders, the insertion piece has walls which project into the hole and against which the projections press in the rotation position of the locking part, which projections hence lock the insertion piece in the hole.
Patent DE-3325759-A1 (DE)
Title: Semi-automatic paint roller or brush
Inventor: BACHMANN OSWIN
IPC: B05C17/03
Filed: 1983-07-16
Abstract: The invention relates to a roller or brush for coating material, there being no need for immersion in the paint or other coating material. As a result of this critical special feature, the dripping of coating material is largely prevented, and coating or rolling from a ladder, for example, is greatly facilitated, since the traditional paint pot, with its tendency to tip over, is unnecessary. With semi-automatic paint rollers, the coating material is contained in a closable coating-material container. This possesses, on the screw closure, an air inlet valve. Through a dipping rod in the container, and through a hose and the roller frame, which consists of metal tubing, the coating material flows directly into the specially constructed roll and can be applied therewith in a conventional manner to the surface to be treated. The special feature of the roll resides in the perforation of the roll core (supporting sleeve for roll covering) and the special design of the roll covering (covering on the outer surface, covering continuous on one end face, perforated to permit an exact fit of the roller frame on the other). The special feature of the coating-material container: It consists of PVC and can be compressed to produce a pump function. The built-in air inlet valve has an extremely low inlet pressure, is raised and freely accessible, and can easily be closed with an index finger. When working with the roll below the level of the coating material, the flow of coating material can effortlessly be regulated thereby. When working ... Original abstract incomplete.
Patent DE-3331846-A1 (DE)
Title: Device for the connection of retaining linkages for accommodating drilling tools
Inventor: NOLDEN WERNER
IPC: E21B17/046
Filed: 1983-09-03
Abstract: The invention relates to a device for the connection of retaining linkages for accommodating drilling tools such as earth augers, drilling heads or the like, having a coupling piece which can be inserted into the end recesses of the adjacent linkage parts, to be connected to one another, in such a way as to be locked against rotation on account of form closure and transverse bores in alignment with one another in the respective linkage end section and in the coupling piece for accommodating a transverse connection. To simplify the device and facilitate manipulation, provision is made according to the invention for the transverse connection to be designed as a connecting bolt which can be inserted into the transverse bores in a locking manner.